Pneumatic wheel-tire.



J. NEFF, SR. PNEUMATIG WHEEL TIRE. APPLICATION FILED FEB. 20, 1909.

9 32, 3 1 O. Patented Aug. 24, 1909.

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fi. Wifi UNITED sr JOHN NEFF, S351., mi" WEST HQEEHIEN, NEW ERSEL Specification o Letters Patent.

, l 'i Patented Aug. se,

Application file. February 26,. 1983. Serial No. fl'l.

To all whom i may concern:

Be it known that I, Jol-iN Narr, Sr., a citizen of the United States, residing at `West Hoboken, Hudsonhcounty, State oi' New Jersoy, have invented new and useful mprove- -Inents in Pneumatic VVheel-Tires, oit which the following isa specification.

This invention relates to a pneumatic wheel tire which is durable, not. liable to skid, and effectively protects the air tube against punctures.

In the accompanying drawing: Figure 1 exaggerated scale; Fig. 5 a perspective view.

of one of the shoe-holding casings, and Fie.

v6 a ierspeetive, View of one of the slices.

T e pneumatic tube 10 is inclosed within a rioid tubula'rhousing composed of a pair of sub vlantially semi-tubular sections l1. Each section 11 is integral at its base with a circular flange 12 provided with a number of radial arms 13 that extend along` somev ot the spokes 1-1. Flange 12- and arms 1? 'are secured to the wheel by bolts 15 carrying nuts lo, 17. Of these, nuts- 16 are countersunk into wheel-rim 18, or spokes 14, while nuts 17 bear directly against flange 12, or arms 13 oit one ot' the sections 11. Thus by unscrewing nuts 17, one half of the housing may be removed without displacing the other half. This other half may, however, also be removed. whenever desired by subsequently.

unscrewingzr nuts 16. Atvits inner side, housing 11 is made integra! With a concave seat 1S) tor aecoinrnodating,` tube 10, said seat eX- tendingr over wheel run 18. At its cireunr terence, housing 1l is provided with a pair ot inwardly extending spaced tiangjes 20, that flank a squared head 21 projecting outwardly from tube 10. Head 21 is enceinpassed by a '.iuiiiber of segmental casings 22 which are screwed to housing 11 and extend along the entire tread ot' the, Wheel. Each casing is reticulated, being` provided with a '5o number of intersecting taperingl partitions 'forming longitudinal rows ot radial openfl ings 23, tout" o" such rows being shown. `W1thin each -openingvis received a ,radially movable shoe 24 'which 'is adapted to bear e5k directly against head 21 and projects seineA distance out vardly beyond casing 22. Shoes 2l are so connected to casing 22, 'that they have a limitedradial movement within openn ings To this eit'ect each shoe 24 is Ypro- 6i) .vided along opposite sides with longitudinal grooves engaging keys 26 of casing 22 and closed at their inner ends as at 27 so that the outward movement ot the shoes is restricted.

ln use, the shoes will be )iished inwardly by contact with the grou'n and will canse a play ot head 21 between flanges 20. 1n this way the desired yielding tread is in sured, while skidding is prevented and the.

inflation 'tube is effectively protectedagainst 79 punctures.

l claim: Y 1. A wheel tire comprising; an inflation tube having an outwardly extending integ'al head, a tubular housing' surroundiugj said tube and having` a pair ot' inwardly extending` flanges flanking said head, a ret-ieu lated easing secured to the housing and having` a series of intersecting tapering partitions to form inteiwening radial openings.

and shoes slidably held within said openings and engaging the head,

A deviceot1 the n haraeter described coniprising` a wheel, an intlation tube, a divided surrounding housing having arms ex'- 85 tending along the wheel-spokes, bolts engaging said arms and spokes. and a pair ot nuts engaging each o' said bolts, one of said nuts being eountersunk within its spoke.

Signed by me at'New. York city, (Man- 90 

